I am inspired on cacti evaperf to monitor HP EVA Storage Array and i wrote an ini file for check_wmi_plus plugin. You can use it with Nagios, Shinken, Centreon Engine, Icinga…It’s a free and easy solution to monitor the HP EVA Storage Array

So I suppose check_wmi_plus plugin is installed on your monitoring engine and “Command View EVA” is installed and working on Windows Server.